package com.jwt.oss.service.Impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.CannedAccessControlList;
import com.jwt.oss.service.OssService;
import com.jwt.oss.utils.ConstantPropertiesUtil;
import com.jwt.servicebase.exceptionhandler.GuliException;
import net.sf.jsqlparser.expression.DateTimeLiteralExpression;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {

    @Override
    public String uploadFileAvatar(MultipartFile file) {

        //获取阿里云存储相关常量
        String endPoint = ConstantPropertiesUtil.END_POINT;
        String accessKeyId = ConstantPropertiesUtil.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtil.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtil.BUCKET_NAME;


        try {
            //创建OSS实例
            OSS ossClient = new OSSClientBuilder().build(endPoint, accessKeyId, accessKeySecret);

            //获取上传文件流
            InputStream inputStream = file.getInputStream();


            //获取文件名称
            String fileName = file.getOriginalFilename();

            //在文件名称里面添加随机唯一的值
            //生成的值4ds5-ds45-878t  把-替换掉
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName=fileName+uuid;

            //获取当前日期
            String datePath = new DateTime().toString("yyyy/MM/dd");
            fileName=datePath+"/"+fileName;

            //调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传到oss文件路径和文件名称  /1.jpg
            //第三个参数  上传文件输入流
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            //获取url地址
            String url = "http://" + bucketName + "." + endPoint + "/" + fileName;
            return url;

        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}
